HP-UX 11i June 2003 Release Notes

HP-UX 11i Version 1.0 Operating Environment Applications
HP-UX 11i Enterprise Operating Environment (EOE)
Chapter 6
123
Process Resource Manager (PRM)
Process Resource Manager (PRM) enables system administrators to guarantee CPU, real
memory, and disk bandwidth resources to users and applications on the system.
NOTE Process Resource Manager and HP-UX Workload Manager both make use of the PRM
API. Consequently, only one of the products should be used at a time. (See also “HP-UX
Workload Manager” on page 127.)
updated for June
2003
HP PRM version C.02.01 provides the following:
• disk bandwidth management for VERITAS Volume Manager (VxVM)
• wide-column option -w available with various PRM utilities for better display of
group names
updated for June
2002
HP PRM version C.02.00.02 provides the following:
• The xprm command has a logging option, -l, that creates the file xprm.log for
information on xprm execution, which may be useful in diagnosing a problem.
• The prm2d memory manager has been improved.
updated for
September 2001
HP PRM version C.02.00 provides the following:
• new memory features
— in-kernel memory management
— dedicated memory for PRM groups
— proportional overachievement for PRM groups
— memory isolation - PRM uses the prm2d memory manager to optionally specify
that a group’s memory cannot be used by other groups and processes on the
system.
• support for processor sets
— HP PRM introduces a new type of PRM group, called a PSET PRM group, that is
based on processor sets. The PSET PRM’s CPU entitlement is specified by
assigning it to a subset of the system’s processors.
• prmanalyze updated to perform new functionality
• new PRM toolset for SCM
NOTE Processor Sets can be installed from the December 2001 Software Pack (Optional HP-UX
11i Core Enhancements) CD included in your HP-UX 11i December 2001 media kit. You
can also download Processor Sets from the HP Software Depot at
http://software.hp.com.